This function returns the connection status of the device.
If the device is connected, the return code also tells the status of the service cache, see bleServiceCacheUpdate.
Input:
dev: SYSHANDLE
Handle to the device to get the status of.
Returns: INT
22
|
|
-
|
|
Connection is ready for use, using cache from this connection.
|
21
|
|
-
|
|
Connection is ready for use, using cache from previous connection.
|
20
|
|
-
|
|
Connection is ready for use, no cache loaded. Use bleServiceCacheUpdate to create the cache.
|
10
|
|
-
|
|
Connected, waiting to configure connection.
|
5
|
|
-
|
|
Trying to establish connection
|
2
|
|
-
|
|
Connection lost. Call bleDisconnect to clean up the connection.
|
1
|
|
-
|
|
Not connected.
|
0
|
|
_BLE_ERR_NOT_SUPPORTED
|
|
The API is not supported.
|
-1
|
|
_BLE_ERR_NOT_OPEN
|
|
The interface is not powered(see blePower).
|
-4
|
|
_BLE_ERR_NOT_FOUND
|
|
Failed to find device.
|
-20
|
|
_BLE_ERR_INVAL_HANDLE
|
|
Invalid handle.
|
Declaration:
FUNCTION bleDeviceStatus : INT;
VAR_INPUT
dev : SYSHANDLE;
END_VAR;
Example:
...
rc := bleDeviceStatus(dev := dev);
DebugFmt(message:="bleDeviceStatus: \1", v1:=rc);
...
|
